NÖN

NÖN is focusing on simplicity and transparency. Because of that it uses MoonScript as its scripting language. To add more transparency, NÖN is also written in MoonScript, so you can have full understanding of what is engine doing by simply looking and source code you can understand.

NÖN is thinking about developers in first place. To use NÖN, only requirement is to have LuaRocks and JDK installed. No more tons of different tools just to package your project for other platforms. You can make games for Windows on Linux, for Linux on Windows, for Android on Mac and so on. You got the idea. Only limitation is that you cannot develop for iOS from other platform than Mac because of Apple limitations.

NÖN is free and open source, and this will never change. Also, to give developers full freedom, it is licensed under the MIT license.